Improvement in ventilators



JAMES L. SMITH, OF TUSCO'LA, ILLINOIS.

IMPROVEMENT IN VENTILATOPLS.

Specification forming part of Leiters Patent No. 52,606. dated May 3, 1864.

To ctZZ whom z't may concern.:

Be it known that I, J. L. SMITH, of Tuscola, Douglas county, in the State of Illinois, have invented certain new and useful Improvements in Ventilators; and I hereby declare that the following is a true and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The object of my invention is to furnish a supply of fresh air in a close room when vitiated by respiration, and also to aii'ord a vent Y to the deoxidated air.

Figure l in the annexed drawings represents a Vertical section of my ventilator. Fig. 2 is a plan view of the same with the top removed.

'lhe letter A represents the body of the machine, which is made ot' plate metal and of an oblong form. rlhe door which is made to open for inspection is designed before the ventilator is placed in position to be soldered tightly, so as to exclude the air. The ventilator is then inserted in the wall and surrounded by the material of which the wall is built.

rlhe pipe B is made to pass through the wall in order to conduct the fresh air from withoutinto the compartment marked O, Fig. 2.

D represents a pipe which has a sliding valve on the end. The pipe D is placed near the bottom of compartment G, and intended y to convey the fresh air from C into the room requiring ventilation. The quantity of air admitted into the room is to be regulated by the sliding valve e on pipe B and tho valve g on pipe D.

E in l represents a pipe which projects into the room, and is constructed with a sliding valve at its end similar to the one on D. The pipe E is placed near the top of compart ment F, and is designed to carry off the vitiated air,rst, into chamber F, and thence into pipe H, which conducts it upward through the roof, where it escapes.

By this simple apparatus lthe air in a small and crowded apartment may be kept per feetly pure and the evil effects avoided of breathing an atmosphere deprived of its proper proportion of oxygen.

Havingthus described 1n y invention, what I claim, and desire to secure by Letters Patent, is-

Ihe compartments C and F, in combination with pipes B, H, E, and D, the whole con strueted in the manner and for the purpose herein set forth.

In testimony that I claim the foregoing I hereby aftix my signature in the presence of two witnesses.

JAMES L. SMITH.

Witnesses:

THOMAS S. SLUss, F. W. SPEELMAN. 

